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Optimazation of the amount of magnesium and copper in silumins of the AK7 type

  • Nonferrous Metals and Alloys
  • Published:
Metal Science and Heat Treatment Aims and scope

Abstract

In order to optimize the concentrations of the basic alloying elements in standard low-copper silumins of the AK7 and AK9 types the effect of copper and magnesium on structure and the phase composition of these alloys is analyzed and phase diagrams are constructed for the conditions of actual crystallization. The method of simplex design is used to construct mathematical models of the dependences of the main mechanical properties of silumins on the concentration of the alloying elements in the cast state and after conventional forms of heat treatment. This has made it possible to determine the possibility of widening the range of copper and magnesium concentrations without worsening the mechanical properties of silumins.

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Authors and Affiliations

  1. Moscow Institute of Steels and Alloys, Moscow, Russia

    N. A. Belov & A. Yu. Gusev

Authors
  1. N. A. Belov
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  2. A. Yu. Gusev
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 10–13, March, 1996.

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Belov, N.A., Gusev, A.Y. Optimazation of the amount of magnesium and copper in silumins of the AK7 type. Met Sci Heat Treat 38, 107–111 (1996). https://doi.org/10.1007/BF01401437

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  • DOI: https://doi.org/10.1007/BF01401437

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